An Experimental Eye-Color-Changing Surgery Is Gaining Popularity—Here’s What We Know about It
A new surgical procedure to permanently change eye color is gaining traction in the U.S. But many ophthalmologists fear long-term unknowns
Black Holes May Be ‘Supermazes’ of Many-Dimensional Strings
Quantum Physics Is on the Wrong Track, Says Breakthrough Prize Winner Gerard ’t Hooft
People Likely Aren’t as Susceptible to False Memories as Researchers Thought
Scientific American Curiosities: Torpedo Effect
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NOAA Reverses Plan to Defer Upkeep of Key Weather Satellites
Vaccines Save Lives. That’s Why We Need Global Immunization
NOAA Halts Upkeep of Critical Weather Satellites
Letting Kids Fail Is Crucial
Create as many words as you can!
Stretch your math muscles with these puzzles.
Inside the AI Competition That Decoded an Ancient Herculaneum Scroll
Building Intelligent Machines Helps Us Learn How Our Brain Works
God Chatbots Offer Spiritual Insights on Demand. What Could Go Wrong?
Will Machines Ever Become Conscious?
Scientists Are Putting ChatGPT Brains Inside Robot Bodies. What Could Possibly Go Wrong?
Losing USAID’s Public Health Programs Imperils the World
Unpacking the Mystery of Squirting: What Science Really Says
Shark Sounds, Molecules on Mars and Continued Federal Cuts
There’s Nothing Small about this Nanoscale Research
Scientists Identify a Brain Structure That Filters Consciousness
Our conscious awareness may be governed by a structure deep in the brain
How Many Rogue Planets Roam the Milky Way?
According to new simulations, many, even most, planets get ejected from their star early in their history
Mathematicians Solve Decades-Old Spinning Needle Puzzle
For a long time, the Kakeya conjecture, which involves rotating an infinitely narrow needle, kept mathematicians guessing—until now
Dennis Gaitsgory, Who Proved Part of Math’s Grand Unified Theory, Wins Breakthrough Prize
By solving part of the Langlands program, a mathematical proof that was long thought to be unachievable, Dennis Gaitsgory snags a prestigious Breakthrough Prize
The Hubble Tension Is Becoming a Hubble Crisis
A long-simmering disagreement over the universe’s present-day expansion rate shows no signs of resolution, leaving experts increasingly vexed
Dire Wolves Were Not Really Wolves, New Genetic Clues Reveal
The extinct giant canids were a remarkable example of convergent evolution
